[RHEL 6] 'smartctl -a /dev/sda' command fails for SAS-controller disks
Issue
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After upgrade from RHEL 5.7 to 6.2, command
smartctl -a /dev/sdXis failing with below error messages for SAS-controller disks:$ smartctl -a /dev/sda smartctl 5.39.1 2010-01-28 r3054 [x86_64-redhat-linux-gnu] (local build) Copyright (C) 2002-10 by Bruce Allen, http://smartmontools.sourceforge.net === START OF INFORMATION SECTION === Model Family: Seagate Barracuda 7200.10 family Device Model: ST3750640AS Serial Number: 223356FF Firmware Version: 3.ADG User Capacity: 750,156,374,016 bytes Device is: In smartctl database [for details use: -P show] ATA Version is: 7 ATA Standard is: Exact ATA specification draft version not indicated Local Time is: Mon Jan 27 10:33:00 2012 MET SMART support is: Available - device has SMART capability. SMART support is: Enabled Error SMART Status command failed <------ Please get assistance from http://smartmontools.sourceforge.net/ A mandatory SMART command failed: exiting. To continue, add one or more '-T permissive' options.
Environment
- Red Hat Enterprise Linux 6.2
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